Adding & Subtracting Decimals

Before we add or subtract decimals, we must make sure our _______ and ________ are lined up.

• Numbers

• Place Values

• Operations

• Decimals

Jim earns $22.50, $14.75, and $8.50 on three different days.  How much did he earn in all? 

• $28.75
• $45.25
• $45.75
• 457.50

Tags

CCSS.5.NBT.B.7

What is the best estimate for 12.98 + 7.3

• 19

• 21

• 20

• 20.28

Tags

CCSS.5.NBT.A.4

CCSS.5.NBT.B.7

5.61 + 2.4

• 8.01
• 7.01
• 7.85
• 2.961

Tags

CCSS.5.NBT.B.7

Which is the best estimate?

3.9 + 2.2 =

• 5

• 6

• 2

• 32

Which is the best estimate? 20.091-16.4=

• 9

• 4

• 3.691

• 5

Estimate the sum of 2.3 and 4.5

• 8

• 6

• 7

• 2.2

Which is set up correct? 15.5 + 4.5

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Which is set up correct? 9.84 + 21.52

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Which is correct? 35.8-2.67

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